Abstract

The hydrogen proton exchange membrane (PEM) fuel cell is a mature and widely used fuel cell technology widely used in automotive powertrains, distributed generation, and unmanned aircraft, and in the military in the future. As a beginning to this book, this chapter introduce the fundamentals, including the operation principle, PEM fuel cell structure, thermodynamics, electrochemical reaction kinetics, PEM fuel cell performance, and PEM fuel cell efficiency. Water and thermal management is a critical part of PEM fuel cell studies. Its main research areas can be summarized as a deeper understanding of transport phenomena in PEM fuel cells. It presents the optimal design of each component to control the internal transport process effectively to improve performance, reduce costs and enhance durability.

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